11112211331 has 8 divisors (see below), whose sum is σ = 11968622064. Its totient is φ = 10256032800.

The previous prime is 11112211321. The next prime is 11112211343. The reversal of 11112211331 is 13311221111.

11112211331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11112211331 - 2⁶ = 11112211267 is a prime.

It is a super-3 number, since 3×11112211331³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11112211301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48620 + ... + 156806.

It is an arithmetic number, because the mean of its divisors is an integer number (1496077758).

Almost surely, 2^11112211331 is an apocalyptic number.

11112211331 is a deficient number, since it is larger than the sum of its proper divisors (856410733).

11112211331 is a wasteful number, since it uses less digits than its factorization.

11112211331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116101.

The product of its digits is 36, while the sum is 17.

Adding to 11112211331 its reverse (13311221111), we get a palindrome (24423432442).

The spelling of 11112211331 in words is "eleven billion, one hundred twelve million, two hundred eleven thousand, three hundred thirty-one".